Belongs within: Falconidae. The Polyborinae includes the caracaras of South and southern North America. Caracaras are relatively long-legged falcons that often feed as scavengers. They have more or less extensive areas of bare reddish skin on the face around the base of the bill. The concerns of caracaras Published 20 May 2024 Falcons are typically… Continue reading Polyborinae


Belongs within: Psittacidae. Little green parrots Published 19 March 2024 The continent of South America is justly renowned for its parrots. The Neotropics are home to an abundance of parrot species, all of them now recognised as belonging to the subfamily Arinae. Among the most famous of the arines are their larger representatives, such as… Continue reading Brotogeris


Belongs within: Picinae. Dryocopus is a genus of medium-sized to large, predominantly black woodpeckers with a red crown found in Eurasia and the Americas. Claimants to the crown Published 22 January 2024 Woodpeckers are among the most recognisable birds of northern temperate forests. Songs have been written about them, cartoons have featured them prominently, proverbs… Continue reading Dryocopus


Belongs within: Psittaciformes.Contains: Micropsitta, Prioniturus, Eclectus, Psittacula, Alisterus, Platycercini, Psittacella, Loriinae, Agapornis, Loriculus. The Psittaculidae are a clade of brightly coloured parrots united by molecular data. The greater diversity of species are found in southern Asia and Australasia with the genus Agapornis found in Africa. The tail may be particularly long in species of the… Continue reading Psittaculidae


Belongs within: Accipitridae. Haliaeetus, the sea eagles, is a genus of large eagles found in the Old World and North America that feed predominantly on fish; species commonly have white heads, white tails and/or yellow beaks and feet. Eagles of the sea Published 28 November 2023 The bald eagle Haliaeetus leucocephalus may have a claim… Continue reading Haliaeetus


Belongs within: Ornithothoraces.Contains: Hesperornithes, Palaeognathae, Neognathae. The Ornithurae are a clade of birds including all modern species together with related fossil forms possessing a very short pygostyle and completely fused tarsometatarsus (Zhou & Zhang 2005). Basal members of this clade include the famous toothed seabirds Ichthyornis and Hesperornis from the Late Cretaceous of North America.… Continue reading Ornithurae

Categorised as Ornithurae


Belongs within: Pardirallini. Rails of the wood Published 12 September 2023 Recent years have seen a number of shifts in the classification of rails, as authors have attempted to resolve conflicts between molecular and morphology-based studies of relationships, and clarified the status of divergent insular taxa. Nevertheless, one genus of rails that has so far… Continue reading Aramides


Belongs within: Telluraves.Contains: Cacatuidae, Psittacidae, Psittaculidae. The Psittaciformes, including the parrots and their fossil relatives, are zygodactyl birds of which living species possess a robust bill specialised for breaking open seeds and nuts. Known stem parrots from the Eocene of Europe and India include the Quercypsittidae and Psittacopes lepidus. Psittacopes lepidus, from the Messel Formation… Continue reading Psittaciformes


Belongs within: Pterosauria.Contains: Pterodactyloidea. The Novialoidea are a clade of pterosaurs defined by Kellner (2003) as the most exclusive clade containing Campylognathoides and Quetzalcoatlus. Members of this clade have the third phalanx of the wing finger shorter than the first and second phalanges (Kellner 2003). The exclusive clade Breviquartossa was defined to include Rhamphorhynchus and… Continue reading Novialoidea


Belongs within: Ornithodira.Contains: Novialoidea. The Pterosauria are a highly distinctive group of reptiles known from the late Triassic to the end of the Cretaceous. They are most obviously characterised by the massive elongation of the forelimb, particularly the fourth digit, to support an extensive wing membrane (reinforced with radiating fibres known as aktinofibrils) that, together… Continue reading Pterosauria